Vertical 9:16 smartphone video, UGC style. POV shot: a foot in a white sock slides into a damp running shoe by the front door, early morning light. The person pulls the foot back out immediately in discomfort. Handheld, realistic amateur footage, shot on iPhone, natural colors, shallow depth of field. Audio: the damp fabric sound, a disgusted "ugh" grunt, birds chirping faintly outside.